GB1085929A - Process for purifying terephthalic acid - Google Patents
Process for purifying terephthalic acidInfo
- Publication number
- GB1085929A GB1085929A GB49572/65A GB4957265A GB1085929A GB 1085929 A GB1085929 A GB 1085929A GB 49572/65 A GB49572/65 A GB 49572/65A GB 4957265 A GB4957265 A GB 4957265A GB 1085929 A GB1085929 A GB 1085929A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terephthalic acid
- given
- solution
- adsorption
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title abstract 4
- 239000002253 acid Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 238000001179 sorption measurement Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 abstract 1
- 238000010494 dissociation reaction Methods 0.000 abstract 1
- 230000005593 dissociations Effects 0.000 abstract 1
- 150000002689 maleic acids Chemical class 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229960001841 potassium permanganate Drugs 0.000 abstract 1
- 239000012286 potassium permanganate Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6652764 | 1964-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1085929A true GB1085929A (en) | 1967-10-04 |
Family
ID=13318417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49572/65A Expired GB1085929A (en) | 1964-11-25 | 1965-11-22 | Process for purifying terephthalic acid |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3465035A (de) |
| DE (1) | DE1256210B (de) |
| FR (1) | FR1464175A (de) |
| GB (1) | GB1085929A (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263452A (en) * | 1979-06-12 | 1981-04-21 | Mitsubishi Gas Chemical Company, Inc. | Process for purifying terephthalic acid |
| US4808751A (en) * | 1988-03-29 | 1989-02-28 | Amoco Corporation | Method for reactivating a group VIII noble metal catalyst for use in the purification of crude terephthalic acid |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6013835A (en) * | 1995-06-07 | 2000-01-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
| US5929274A (en) * | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
| US6054610A (en) * | 1995-06-07 | 2000-04-25 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
| US5767311A (en) * | 1995-06-07 | 1998-06-16 | Glitsch International, Inc. | Method and apparatus for preparing purified terephtalic acid |
| CN114478234B (zh) * | 2022-02-09 | 2023-03-31 | 河北海力恒远新材料股份有限公司 | 一种4-氯代邻苯二甲酸单钠盐粗品的精制方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1945246A (en) * | 1930-09-26 | 1934-01-30 | Selden Co | Separation of organic dibasic acids |
| US2745872A (en) * | 1952-12-24 | 1956-05-15 | California Research Corp | Isophthalic acid and terephthalic acid separation |
| GB989438A (en) * | 1961-03-09 | 1965-04-14 | Toyo Rayon Co Ltd | Process for purifying terephthalic acid |
| DE1136999B (de) * | 1961-06-10 | 1962-09-27 | Basf Ag | Verfahren zur Gewinnung von reiner Terephthalsaeure |
| US3247246A (en) * | 1961-11-06 | 1966-04-19 | Standard Oil Co | Cyclic process for production of terephthalic acid |
-
1965
- 1965-11-22 GB GB49572/65A patent/GB1085929A/en not_active Expired
- 1965-11-22 US US50915165 patent/US3465035A/en not_active Expired - Lifetime
- 1965-11-24 DE DES100640A patent/DE1256210B/de active Pending
- 1965-11-25 FR FR39719A patent/FR1464175A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263452A (en) * | 1979-06-12 | 1981-04-21 | Mitsubishi Gas Chemical Company, Inc. | Process for purifying terephthalic acid |
| US4808751A (en) * | 1988-03-29 | 1989-02-28 | Amoco Corporation | Method for reactivating a group VIII noble metal catalyst for use in the purification of crude terephthalic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1256210B (de) | 1967-12-14 |
| US3465035A (en) | 1969-09-02 |
| FR1464175A (fr) | 1966-12-30 |
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